var openImg = new Image();
	openImg.src = "images/open.gif";
	var closedImg = new Image();
	closedImg.src = "images/folder.gif";
	var attachImg = new Image();
	attachImg.src = "images/attach.gif";
	var minutesImg = new Image();
	minutesImg.src = "images/minutes.gif";
	
	function showBranch(branch){
		var objBranch = document.getElementById(branch).style;
		if(objBranch.display=="block")
			objBranch.display="none";
		else
			objBranch.display="block";
	}
	
	function swapFolder(img){
		objImg = document.getElementById(img);
		if(objImg.src.indexOf('images/attach.gif')>-1)
			objImg.src = minutesImg.src;
			
		else if(objImg.src.indexOf('images/folder.gif')>-1)
			objImg.src = openImg.src;
		
		else if(objImg.src.indexOf('images/minutes.gif')>-1)
			objImg.src = attachImg.src;
		
		else
			objImg.src = closedImg.src;
	}